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Experimental investigation of confined, multiple, turbulent jet mixing with recirculation

Thesis/Dissertation ·
OSTI ID:5949555
An experimental investigation was conducted to confined, multiple, turbulent jet mixing with recirculation in an axisymmetric duct that simulated a combustor configuration. The objective was to experimentally examine the flow fields in combustors that utilize injector plates to establish turbulent jet mixing of fuels and oxidizers. Five injector plates were tested; one contained an annular hole or slit, three plates had eight discrete holes on a ring and the remaining plate had thirty two holes on two rings. The last plate was a scaled model of injector plates that have been used n pulverized coal combustors in the United States Department of Energy's Coal Fired Flow Facility at the University of Tennessee Space Institute. Flow fields downstream of the plates were investigated using flow visualization and laser velocimetry. Qualitative data were obtained with dye injection and hydrogen bubble generation flow visualization techniques. Wall static pressure distributions were measured with a sensitive pressure transducer.
Research Organization:
Tennessee Univ., Knoxville (USA)
OSTI ID:
5949555
Country of Publication:
United States
Language:
English